I had a similar situation. I suggest this, with all do respect to the above, go to the nursing home order that they call an ambulance and take your mother to the local emergency room. Have the pressure sores examined and get an opinion on the 'stage' of the sore. If they are stage 3 they are reportable in most States. The SNH will not diagnosis as Stage 3 for that reason..unless maybe it's a Stage 4. Carry all paperwork to the hospital yourself or get copies and read what they write... they will be trying to protect themselves be aware that the writings of the SNH will influence the Doctor or Hospital. If they refuse an ambulance try this 'you call an ambulance or I'll call an attorney'. If that has no influence call the ambulance yourself. Try very hard to have her admitted, maybe for the pancreatic tumor concern if not the pressure sores. Pull the medical records on the tumor, it is odd that is have not been evaluated. Regardless of the release do not send her back to that nursing home, request another and visit first.
My uncle died from complications of pressure sores, he was otherwise very sick.
My mother developed pressure sores at an Assisted Living, she did have a theraputic wheelchair pad, and could walk some... she went from 200 ft to almost 0.. Visiting Nurses and the ALF did not report the Pressure Sores to me... but called the Doc who's nurse ignored the sores.... I filled with Medicare on the Visiting Nurses Group 9 mths ago and Medicare has done nothing.... I believe they will ignore it hoping I forget. I filled with the Hospital that runs the Visiting Nurse Group and the CEO said well file your complaint and see if it goes anywhere...I think these people forget that they are made of flesh and blood too. Good Luck...

In my experience it goes the other way. The patient gets bed or pressure sores and won't walk because of the pain. Check her heels for more sores. Check her constantly for frozen joints.